VeriThin Watch, Face and Movement


Introduced in 1904, Gruen’s VeriThin (also spelled Verithin or Veri-Thin) was about one-third thinner than conventional movements. The hairspring and balance wheel of this VeriThin pocket watch were made using “Conoruma,” Gruen’s proprietary alloy, which was anti-magnetic and impervious to temperature changes. Conoruma was made from nickel, steel, chromium, manganese, tungsten, and carbon.

Source and Copyright

Medium Color Photograph
Source Private Collection
Collection Collection of Raechel Guest
Copyright Copyrighted
Disclaimer Courtesy of Raechel Guest